Characteristics:
* Linear: The graph will be a straight line.
* Negative Slope: The slope of the line will be negative. This is because retardation means the velocity is decreasing with time.
* Intercept: The y-intercept of the graph represents the initial velocity of the body.
* Area: The area under the graph represents the displacement of the body during the time interval.
Visual Representation:
Imagine a graph with time (t) on the x-axis and velocity (v) on the y-axis. The graph will look like a straight line sloping downwards from left to right.
Example:
Let's say a car is moving with a uniform retardation of -2 m/s². If its initial velocity is 10 m/s, the velocity-time graph would be a straight line with a slope of -2, starting at the point (0, 10) on the y-axis.
Key Points:
* Uniform Retardation: The key word here is "uniform". This means the rate of change of velocity (acceleration) is constant. If the acceleration were not constant, the graph would not be a straight line.
* Displacement: The area under the graph represents the displacement because the area of a triangle is (1/2) * base * height, which corresponds to (1/2) * time * change in velocity, which is the displacement.
Let me know if you'd like a more detailed explanation or examples!